Home / 18,455.34-27,685.08-6,768.54

Finding the Fourth Proportional to 18,455.34, 27,685.08 and 6,768.54

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Solution

The fourth proportional to 18,455.34, 27,685.08 and 6,768.54 is: 10,153.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455.34 : 27,685.08 = 6,768.54 : x
  2. Step 2: Convert to fraction form
    18,455.34/27,685.08 = 6,768.54/x
  3. Step 3: Cross multiply
    18,455.34x = 27,685.08 × 6,768.54
  4. Step 4: Simplify right side
    18,455.34x = 187,387,571.38
  5. Step 5: Solve for x
    x = 187,387,571.38/18,455.34
  6. Step 6: Final answer
    x = 10,153.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.